Home / 4,138.89-5,705.01-3,391.53

Finding the Fourth Proportional to 4,138.89, 5,705.01 and 3,391.53

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Solution

The fourth proportional to 4,138.89, 5,705.01 and 3,391.53 is: 4,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.89 : 5,705.01 = 3,391.53 : x
  2. Step 2: Convert to fraction form
    4,138.89/5,705.01 = 3,391.53/x
  3. Step 3: Cross multiply
    4,138.89x = 5,705.01 × 3,391.53
  4. Step 4: Simplify right side
    4,138.89x = 19,348,712.57
  5. Step 5: Solve for x
    x = 19,348,712.57/4,138.89
  6. Step 6: Final answer
    x = 4,674.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.